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l @auch tate gamut @Hita Letters Patent No. 75,455, dated April 7, 186B.

IMPROVEMENT IN GOALSTOVES.

@the tlg'chule tuant tu' in tigen tethrt ntmt mit uniting' ritt tf tigtsmut.

TO ALL WHOM II MAY CONOERN:

Beit known vthat I, ELU-IU HOSFORD, of Chicago, in the lcounty of Cook,and inthe State of Illinois, have invented an Improved Stove for BurningCoal, and consuming all gas arising therefrom; and do hereby declarethat the following is a full, clear, and exact description thereof,'reference being had to the accompanying drawings making a part of thisspecification, in which- Figure l is avertical section ot" igs. 2, 3, 4,and 5, at thc intersection of the redline :v x.

Figure 2 is a cross-section of iig. 1 at the intersection of the redline y y.

Figure 3 is a cross-Section of fig. 1 atthe intersection of the redlinez z.

Flgurel is a front elevation of the base.

Figure 5 is a view of the feed and draught-door.

Figure 6 is a perspective view of the grate.

Letters of like name refer to like parts in cach of the figures.

The nature of my invention consists in a method for consuming the smokeand'gas given oli` from burning coal, by forcing them downwardthrough-the entire length of the tire-pot, and then upward throughhollow columns iuto thc hot-air chamber and smoke-flue, for whichpurpose thestove described below is designed.

In the annexed drawings, A represents the cylinder', constructed in theusual manner, B represents the grate, made of iron, soapstone, or othermaterial, being a short cylinder, ,with a conical top, corrugated orgr'ooved to admit of the passage of' air, and allow the Aashes andrefuse to fall into the ash-pit, E. G-isa pivot upon which the grateBturns, passingdownward through the bottom ef the stove when the'handle Dis attached, by the use of which the grate B is rotated, causingthe'ashes to fall into the ash-box E, to which access is'had throughlthe door M. F F are hollow columns or pipes, connecting the ash-box Ewith thehot-airchambcr G, and smoke-flue H, IA is a damper, operated b-ythe rod K, which when closed cuts otl" direct communicationbetweenthe'cylinder A' and hot-air chamber G. L is the feed and draught-door.His an air-space, formed by a double bottom, through which the aircirculates freely, being admitted by openings in the sides, to protectthe iloor from heat.

The operation of this stove is very simple. To start a fire, the damperI and door M are opened, causing adraught from below the grate B,through the cylinder A and hot-air chamber G, into `the smoke-due H, as

` indicated by the blue arrows, and the coal ignited in the usualmanner. After the fire is well started, fresh coal is supplied, andthedamper I' and door M closed, reversing the-draught and causing it topass downward through the {ire-pot into the ash-box' E, and upwardsthrough the columns F F and hot-air chamber G, intothe smoke-flue II, asshown by thc rcdrarrows, whereby the smoke and gas are entirelyconsumed.

The advantages possessed by my stove over all others in use are, first,the gas and smoke are entirely consumed, whereby thev heating propertiesof the coal are increased from forty to sixty per cent., and aproportionate amount of fuel and cost saved; second, the heat from there being carried downward into the base of the stove, the lowerpart ofthe room is warmed in a more thorough manner; third, the grate isstronger, more durable, and better adapted to the purpose requiredv thanany other; fourth, the direct draught from the ashbox carriesinto thechimney all dust that would otherwise come into thercom and cause muchannoyance while the ashes are being shaken down; fifth, theradiating-surface is much larger than that of other stoves of like bulk,enabling it to warm a larger room; it is more simple, easy ofconstruction, and can be produced at vless cost.

Having thusfully described my improvement, what I claim as my invention,and desire to secure by Letters Patent, s-. Y

The grate B or itsY equivalent, for 'the 'purpose and substantially asherein described.

I also claim the combination oi' the cylinder A, grate B, ash-box E,air-space II, columns F F, and hot-air chamber G, for the purpose andsubstantially as herein set forth.

,"[nl testimony that I claim the foregoing, I have hereunto set my hand,this 11th day of February, 1868.

ELIHU HosroRD.

Witnesses:

LUTHER B. FRY, LOUIS I-I. HOLMES.

